Cline vs Codex
Developers comparing these are usually choosing between full control over their coding agent versus a fully managed hands-off one, and deciding whether they want to pay per token or pay a flat subscription.
The difference that matters
Cline is a free, open-source VS Code extension where you bring your own API key and pay your model provider directly, with every action shown and approved before it runs. Codex is OpenAI's cloud agent, bundled into a ChatGPT subscription, that works asynchronously in its own sandbox and opens a pull request when the task is done rather than asking for step-by-step approval.
Side by side
| Cline | Codex | |
|---|---|---|
| Free tier | The extension itself is entirely free; you supply your own model API key and pay that provider directly | Limited access on the ChatGPT Free tier ($0), no cloud task delegation |
| Entry paid plan | No required paid tier; optional ClinePass at $9.99/mo bundles curated open-weight models with higher rate limits | $20/mo (ChatGPT Plus), the practical entry point for full Codex with cloud task delegation |
| Bills in | Token costs are billed directly by your chosen model provider (Anthropic, OpenAI, etc.), not by Cline | Token-based credit system (input/cached-input/output tokens) as of April 2026, replacing the old per-task model |
Choose Cline if
Pick Cline if you want to see and approve every file change as it happens, and you would rather pay your model provider directly than absorb a subscription markup.
Choose Codex if
Pick Codex if you can specify a task clearly enough to hand it off and walk away, since async execution with no babysitting is the entire point.
Our verdict
Cline wins on transparency and cost control since you only ever pay raw model tokens, while Codex wins on convenience for well-scoped tasks you do not want to supervise. Choose based on whether you want to watch the work happen or just get the pull request.
What to watch out for
Cline's core extension is free with BYOK, confirmed live on cline.bot, the optional ClinePass add-on is $9.99/mo (with a $4.99 first-month promo), not required to use the tool. Codex's practical entry point is ChatGPT Plus at $20/mo for full cloud task delegation, though OpenAI began rolling out a more limited free Codex Mobile to all ChatGPT tiers in May 2026, and Codex billing switched to a token-based credit system in April 2026, so exact usage caps per tier may have shifted since last checked.
Compare against the rest
Both of these sit in the full Coding & Dev directory, which covers 7 tools.
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